The patch titled
Use page_cache_xxx in mm/mpage.c
has been removed from the -mm tree. Its filename was
use-page_cache_xxx-in-mm-mpagec.patch
This patch was dropped because it was nacked
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: Use page_cache_xxx in mm/mpage.c
From: Christoph Lameter <clameter@xxxxxxx>
Use page_cache_xxx in mm/mpage.c
Reviewed-by: Dave Chinner <dgc@xxxxxxx>
Signed-off-by: Christoph Lameter <clameter@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/mpage.c | 28 ++++++++++++++++------------
1 file changed, 16 insertions(+), 12 deletions(-)
diff -puN fs/mpage.c~use-page_cache_xxx-in-mm-mpagec fs/mpage.c
--- a/fs/mpage.c~use-page_cache_xxx-in-mm-mpagec
+++ a/fs/mpage.c
@@ -125,7 +125,8 @@ mpage_alloc(struct block_device *bdev,
static void
map_buffer_to_page(struct page *page, struct buffer_head *bh, int page_block)
{
- struct inode *inode = page->mapping->host;
+ struct address_space *mapping = page->mapping;
+ struct inode *inode = mapping->host;
struct buffer_head *page_bh, *head;
int block = 0;
@@ -134,9 +135,9 @@ map_buffer_to_page(struct page *page, st
* don't make any buffers if there is only one buffer on
* the page and the page just needs to be set up to date
*/
- if (inode->i_blkbits == PAGE_CACHE_SHIFT &&
+ if (inode->i_blkbits == page_cache_shift(mapping) &&
buffer_uptodate(bh)) {
- SetPageUptodate(page);
+ SetPageUptodate(page);
return;
}
create_empty_buffers(page, 1 << inode->i_blkbits, 0);
@@ -169,9 +170,10 @@ do_mpage_readpage(struct bio *bio, struc
sector_t *last_block_in_bio, struct buffer_head *map_bh,
unsigned long *first_logical_block, get_block_t get_block)
{
- struct inode *inode = page->mapping->host;
+ struct address_space *mapping = page->mapping;
+ struct inode *inode = mapping->host;
const unsigned blkbits = inode->i_blkbits;
- const unsigned blocks_per_page = PAGE_CACHE_SIZE >> blkbits;
+ const unsigned blocks_per_page = page_cache_size(mapping) >> blkbits;
const unsigned blocksize = 1 << blkbits;
sector_t block_in_file;
sector_t last_block;
@@ -188,7 +190,7 @@ do_mpage_readpage(struct bio *bio, struc
if (page_has_buffers(page))
goto confused;
- block_in_file = (sector_t)page->index << (PAGE_CACHE_SHIFT - blkbits);
+ block_in_file = (sector_t)page->index << (page_cache_shift(mapping) - blkbits);
last_block = block_in_file + nr_pages * blocks_per_page;
last_block_in_file = (i_size_read(inode) + blocksize - 1) >> blkbits;
if (last_block > last_block_in_file)
@@ -276,7 +278,8 @@ do_mpage_readpage(struct bio *bio, struc
}
if (first_hole != blocks_per_page) {
- zero_user_segment(page, first_hole << blkbits, PAGE_CACHE_SIZE);
+ zero_user_segment(page, first_hole << blkbits,
+ page_cache_size(mapping));
if (first_hole == 0) {
SetPageUptodate(page);
unlock_page(page);
@@ -454,7 +457,7 @@ static int __mpage_writepage(struct page
struct inode *inode = page->mapping->host;
const unsigned blkbits = inode->i_blkbits;
unsigned long end_index;
- const unsigned blocks_per_page = PAGE_CACHE_SIZE >> blkbits;
+ const unsigned blocks_per_page = page_cache_size(mapping) >> blkbits;
sector_t last_block;
sector_t block_in_file;
sector_t blocks[MAX_BUF_PER_PAGE];
@@ -523,7 +526,8 @@ static int __mpage_writepage(struct page
* The page has no buffers: map it to disk
*/
BUG_ON(!PageUptodate(page));
- block_in_file = (sector_t)page->index << (PAGE_CACHE_SHIFT - blkbits);
+ block_in_file = (sector_t)page->index <<
+ (page_cache_shift(mapping) - blkbits);
last_block = (i_size - 1) >> blkbits;
map_bh.b_page = page;
for (page_block = 0; page_block < blocks_per_page; ) {
@@ -555,7 +559,7 @@ static int __mpage_writepage(struct page
first_unmapped = page_block;
page_is_mapped:
- end_index = i_size >> PAGE_CACHE_SHIFT;
+ end_index = page_cache_index(mapping, i_size);
if (page->index >= end_index) {
/*
* The page straddles i_size. It must be zeroed out on each
@@ -565,11 +569,11 @@ page_is_mapped:
* is zeroed when mapped, and writes to that region are not
* written out to the file."
*/
- unsigned offset = i_size & (PAGE_CACHE_SIZE - 1);
+ unsigned offset = page_cache_offset(mapping, i_size);
if (page->index > end_index || !offset)
goto confused;
- zero_user_segment(page, offset, PAGE_CACHE_SIZE);
+ zero_user_segment(page, offset, page_cache_size(mapping));
}
/*
_
Patches currently in -mm which might be from clameter@xxxxxxx are
origin.patch
git-unionfs.patch
git-slub.patch
hugetlb-fix-pool-shrinking-while-in-restricted-cpuset.patch
x86-cast-cmpxchg-and-cmpxchg_local-result-for-386-and-486.patch
ntfs-fix-nommu-build.patch
slub-fix-possible-null-pointer-dereference.patch
slub-fix-possible-null-pointer-dereference-fix.patch
remove-set_migrateflags.patch
mm-use-zonelists-instead-of-zones-when-direct-reclaiming-pages.patch
mm-introduce-node_zonelist-for-accessing-the-zonelist-for-a-gfp-mask.patch
mm-remember-what-the-preferred-zone-is-for-zone_statistics.patch
mm-use-two-zonelist-that-are-filtered-by-gfp-mask.patch
mm-have-zonelist-contains-structs-with-both-a-zone-pointer-and-zone_idx.patch
mm-filter-based-on-a-nodemask-as-well-as-a-gfp_mask.patch
use-page_cache_xxx-in-mm-mpagec.patch
use-page_cache_xxx-in-mm-fadvisec.patch
mm-move-cache_line_size-to-linux-cacheh.patch
use-page_cache_xxx-in-ext2.patch
use-page_cache_xxx-in-ext2-fix.patch
use-page_cache_xxx-in-ext2-fix-2.patch
use-page_cache_xxx-in-fs-ext3.patch
use-page_cache_xxx-in-fs-reiserfs.patch
use-page_cache_xxx-in-fs-ext4.patch
reiser4.patch
reiser4-portion-of-zero_user-cleanup-patch.patch
page-owner-tracking-leak-detector.patch
--
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